<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  
  <script>

    // 1.进制
    console.log(100)
    console.log(0b100)
    console.log(0o100)
    console.log(0x100)

    // 2.长数字的表示
    const money = 100_00_00_0000_00_00

  </script>

</body>
</html>